Device for depositing material in well holes



March 9, 1948. HAYNES 2,437,663

DEVICE FOR DEPOSITIN'G MATERIAL IN WELL HOLES Filed Nov. 16, 1944 INVENTOR. Jam as Q Haynes A TTOR/VEXS Patented Mar. 9, 1948 DEVICE FOR DEPOSITING MATERIAL IN WELL HOLES James D. Haynes, Kilgore, Tex., assignor to The Dow Chemical Company, Midland, Mich., a

corporation of Delaware Application November 16, 1944, Serial No. 563,681 2 Claims. (01. 166-19) The invention relates to a device, particularly adapted for lowering quantities of pulverulent or granular materials, such as gravel, into deep wells.

One of the objects of the invention is to pro;- vide a dumping bailer for use in wells capable of handling a granulated material having a high angle of repose. Another object is to provide a bailer of simple construction and capable of re leasing its contents by manipulation oi the suspending cable at the top of the well. Another object is to provide a device of the aforesaid character in which the release of the pulverulent material from the bailer is assured. Still other objects and advantages of the invention will appear as the description proceeds, the accompanying drawing and following description setting forth in detail a mode of practicing the invention.

In the drawing:

Figure 1 is a side elevation of the complete bailer assembly largely in cross section attached to a set of jars on a suspending cable.

Figure 2 is a cross section on the line 2-2'- of Figure 1.

Figure 3 is a cross section on the line 33' of Figure 1.

Figure 4 is a cross section on the line 4-- t' of Figure 1.

Figure 5 is a fragmentary view in side elevation of the upper portion of the bailer of Figure 1 taken at right angles to it.

Figure 6 is a fragmentary view in side elevation of the lower portion of the bailer of Figure 1 at right angles to it.

In the several figures, like numerals refer to like parts.

Referring more particularly to the drawing, the bailer comprises a cylindrical container I having a diameter slightly less than the well it is to enter. The top is provided with an opening as at 2 while side portions 8 extend upward to support the guide ring 4. The bottom is similarly constructed with openings 5 and side extensions 6 supporting the foot 1. The bottom of the container is closed by a removable disc 8 supported on shear pins 9 inserted through holes ID in the wall of the container. The shear pins may consist of heavy gauge wire, the ends ll being bent over as shown to hold them in place.

Th interior of the container is provided with an agitator consisting of a tubular member !2 extending substantially the length of the cylindrical portion of the container. The lower portion of the agitator is provided with guides 13 adapted to center the agitator while allowing longitudinal movement in the container. The

bottom end is provided with a reinforcing ring [4. Secured in the upper end of the agitator is.

a ring 15, having an opening through which a.

ba'r'or rod It extends in a sliding fit. The lower end of the rod l6 carries a stop I! adapted to' engage reinforcing ring I 4 'so' as to prevent the rod from being upwardly pulled through the tube- I 2. Guide members l8 attached to the inner surface of the container near the upper end serve to centralize the upper end of the tubular member 12 in the container. Above the ring IS, a stop I 9 is provided on rod l6 'so as to limit its downward movement relative to the tube l2 by engagement with the ring l5. The stop member l9 afiixed to the rod l6 limits the upward travel of the rod [8 relative to the container by engaging the bottom of ring 4. The upper end of the rod 16 is screwed into a coupling 20 which is connected to the shaft 2| o1 jars 22, attached to cable socket 23 to which is attached the sus pending cable 24.

In operation, the bailer assembly, exclusive of the jars, is lowered into the well on cable 24 leaving the top opening 2 exposed above the well so that the bailer container I may be filled with the material to be dumped into the well. Prior to the lowering of the bailer in the well closure disc 8 is inserted in the bottom of the bailer and shear pins 9 set in place so as to support the disc, and the agitator positioned to rest upon stop 11 while the latter is positioned close to the disc 8 as shown. The bailer cylinder I is then loaded as by pouring the material thereinto through the top opening 2. The loaded bailer is then let down into the well on the Jars and cable until the foot member I rests upon the bottom or such filling material as may be therein.

To unload the bailer, the cable is raised and lowered alternately in amount sufiicient to operate the jars. The resulting downward movement of the rod I 6 drives the stop member I! upon the disc 8 which in turn breaks the shear pins 9 allowing the disc 8 to fall out of the opening 5 into the well.

The discharge of the container l is then effected by raising and lowering the cable so as to raise and lower the agitator tube I2 inside the container, this vertical movement serving to bring about the release of the pulverulent material in the annular space between the tubular member l2 and wall of the container I. As the agitator is being thus raised and lowered and the pulverulent material leaves the bailer container and enters the Well, the bailer assembly is raised corpulverulent material into awell comprisingqax container for holding the pulverulent material'tb be dumped, a removable closure; im thee bottom a of the container, shear pins inxthe". bottomrofithe container adapted to form a support for the 010- sure and to release the closure-when rshearedflacentral agitator longitudinallir disposed'witiiin the container and adapted for longitudinal-mm tion therein, guide means attached to the lower endflof theagitaton-for: centralizing, the: lower: end oi the agitaton within thelcontainer; alba-r extendingitlongitudinally throughithetagitator; up pen" stop means? on: theupper end. of? the barlixniting-i downwardilnrovement thereofi relative :to: the' agitator,;lowen stopameanse on: the lower end oi thebam limiting upward:movementtthereoforela ative to'-the= agitator; said 'bar- 1381113 401 snflieienti length between the said upper and lower stop means to permit longitudinal movement of the bar relative to the agitator so that the lower end of the bar may strike the removable closure, stop means attached to the upper end of the container for limiting the upward movement of the bar by engagingthe: upper stop means thereon, and means attached to.:the uppeiz'end of the bar above the upper stop means for suspending the container in the well.

2. A dumpingbailer according to claim 1 and having-a: guide means in the upper end of the container for centralizing therein the upper end Offthez agitator:

JAMES D. HAYNES.

REFERENCES CITED The following references are of record in the file ofi th'is patent:

UNITED STATES PATENTS Number: Name Date 1,569,293 Miller .Jan; 12, 1926 2,064,336 Bates Dec. 15, 1936 2,190,901:- Wilcox et a1. Feb: 20, 1940 2,308,-156=- Crump Jan.- 12, 1943 2,365,798. Blair-etal: Dec. 26, 1944, 

